CN1096258A - Undercarriage structure of motor vehicle - Google Patents

Undercarriage structure of motor vehicle Download PDF

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Publication number
CN1096258A
CN1096258A CN94104137A CN94104137A CN1096258A CN 1096258 A CN1096258 A CN 1096258A CN 94104137 A CN94104137 A CN 94104137A CN 94104137 A CN94104137 A CN 94104137A CN 1096258 A CN1096258 A CN 1096258A
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CN
China
Prior art keywords
base plate
tube cavity
cavity segment
motor vehicle
floor beams
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN94104137A
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Chinese (zh)
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CN1072575C (en
Inventor
坂本敏则
藤中充
田中启介
水户敏世
原崎隼次
古泽透
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazda Motor Corp
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Mazda Motor Corp
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Filing date
Publication date
Application filed by Mazda Motor Corp filed Critical Mazda Motor Corp
Publication of CN1096258A publication Critical patent/CN1096258A/en
Application granted granted Critical
Publication of CN1072575C publication Critical patent/CN1072575C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • F01N13/1822—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration for fixing exhaust pipes or devices to vehicle body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/10—Understructures, i.e. chassis frame on which a vehicle body may be mounted in which the main member is plate-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/02—Side panels
    • B62D25/025—Side sills thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly

Abstract

A kind of undercarriage structure of motor vehicle, it have a pair of front-axle beam, a pair of and front-axle beam rear end integrally bonded assembly floor beams, be installed on base plate on the floor beams and side bar that some extend and be connected with the floor beams side along front/rear direction.Floor beams, side bar and base plate are common to be constituted along the closing structure of front/rear direction extension.

Description

Undercarriage structure of motor vehicle
The present invention relates to a kind of undercarriage structure of motor vehicle, particularly a kind of undercarriage structure of motor vehicle with bigger opposing lateral loading rigidity.
A kind of known undercarriage structure of motor vehicle is disclosed in Japanese Utility Model communique 3-85278 number.This traditional Undercarriage structure has a noseplate, the one tube cavity segment (the underframe part of bottom of door) that extends and fuse with noseplate along front/rear direction, one is arranged at the back base plate of noseplate back, with the boxlike passage that the front end of a pair of rear end by noseplate and back base plate constitutes, this passage broad ways setting and within it lateral edges be connected with a cavity segment.
In traditional undercarriage structure of motor vehicle,, can resist lateral loading effectively because the tube cavity segment has big rigidity.
Yet, still need further to increase its rigidity and reduce its weight for automobile chassis frame.
The purpose of this invention is to provide a kind of undercarriage structure of motor vehicle, it has the big rigidity that can resist lateral loading.
Another object of the present invention provides a kind of undercarriage structure of motor vehicle, and wherein, various parts can be arranged on the base plate and/or its time.
According to the present invention, above-mentioned reaches other purposes by providing a kind of undercarriage structure of motor vehicle to realize.This structure comprises a pair of front-axle beam, the whole bonded assembly floor beams in a pair of rear end with front-axle beam, all side bars that are installed on the base plate on the floor beams and extend and be connected with the side of floor beams along front/rear direction, and described floor beams, each side bar and base plate are common to be constituted along the closing structure of front/rear direction extension.
In a most preferred embodiment of the present invention, base plate constitutes the tube cavity segment (the underframe part of bottom of door) with U-shaped cross section at the middle part along its front/rear direction, and this part is extended along vehicle-body width direction, and described closing structure extends upward from the tube cavity segment.
In another most preferred embodiment of the present invention, Undercarriage structure comprises that also one is arranged at a pre-noise silencer and the main muffler in the base plate tube cavity segment.
Again in the most preferred embodiment, Undercarriage structure also comprises the passenger seat slide rail on the tube cavity segment that is arranged at base plate in the present invention.
According to a further aspect in the invention, a kind of undercarriage structure of motor vehicle comprises the whole bonded assembly floor beams in the rear end of a pair of front-axle beam, a pair of and front-axle beam, all side bars that are installed on the base plate on the floor beams and extend and be connected with the side of floor beams along front/rear direction, described base plate constitutes the tube cavity segment with U-shaped cross section at the middle part of its front/rear direction, this part is extended along vehicle-body width direction.
In the present invention's one most preferred embodiment, described each side bar has the closing structure that extends along front/rear direction, and this structure extends upward from described tube cavity segment.
The present invention above-mentioned with other purpose and feature, by being well understood in the following description, the present invention is described below with reference to the accompanying drawing of expression most preferred embodiment.In the accompanying drawing:
Fig. 1 represents the transparent view of the automobile chassis frame of one embodiment of the invention;
Fig. 2 is along the section-drawing of A-A line among Fig. 1;
Fig. 3 is along the section-drawing of B-B line among Fig. 1;
Fig. 4 is along the section-drawing of C-C line among Fig. 1;
Fig. 5 is along the section-drawing of D-D line among Fig. 1;
Fig. 6 represents the base plate of the embodiment of the invention and the planar view of tube cavity segment;
Fig. 7 is the front elevation of Fig. 6;
Fig. 8 represents the transparent view of the base plate tube cavity segment of the embodiment of the invention, and described part is provided with seat slide;
Fig. 9 represents the planar view of the base plate tube cavity segment of the embodiment of the invention, is provided with the frame support bracket of the plunging joint of supporting four wheel drive (4WD) axle below described part;
Figure 10 is the lateral plan of Fig. 9;
Figure 11 is the front elevation of Fig. 9;
Figure 12 illustrates the front elevation of a base plate tube cavity segment, and described part is provided with seat;
Figure 13 is the lateral plan of Figure 12;
Figure 14 represents the automobile chassis frame transparent view of another embodiment of the present invention;
Figure 15 is along the section-drawing of E-E line among Figure 14;
Figure 16 is along the section-drawing of F-F line among Figure 14;
Figure 17 is the automobile chassis frame transparent view of another embodiment of the present invention.
Referring now to preferred embodiment and accompanying drawing the present invention is described.
With reference to Fig. 1 one embodiment of the invention are described, the a pair of front-axle beam 1 that extends along the front/rear direction of vehicle body under the machinery space that is positioned at, a pair of floor beams 2 is connected with the rear end integral body of front-axle beam 1 or welds, so that its leading portion broad ways extension, and its other parts are extended along front/rear direction.The a pair of back rest 4 is connected with the rear end integral body of floor beams 2 or welds, so that extend under the baggage container.Each is to being linked to be an integral body by some crossbeams between front-axle beam 1, floor beams 2 and the back rest 4.Specifically be, front-axle beam 1 is connected and by the cross sill 8 of a firewall its rear end is linked together at its front end by first crossbeam 6, floor beams 2 position is therebetween linked together by second crossbeam 10 and its rear end is linked together by the 3rd crossbeam 12, and the back rest 4 position is therebetween connected by the 4th crossbeam 14.
The lower surface that is provided with the base plate 16 of some seat (not shown)s engages with the upper surface of floor beams 2, base plate 16 has a cavity segment (the underframe part of bottom of door) 18 along the middle part of front/rear direction, this part 18 has the U-shaped cross section, and broad ways is extended.The middle part 2a of floor beams 2 is than other position height, thereby described part 18 is connected with this middle part 2a.
The side bar 20 that extends along front/rear direction is contained on each side of described paired floor beams 2, and it is inside and outside surperficial 22 and 24 that side bar 20 has side bar, constitutes closing structure shown in Figure 3 26 by described inside and outside surperficial 22 and 24.Especially, the front portion of side bar 20 is installed in the front portion of floor beams 2, and the part except that its front portion of side bar 20 should have such structure, but so that the closing structure 32 shown in floor beams 2, base plate 16 and side bar inside face 22 pie graphs 3 and 4.
The closing structure that is made of floor beams 2, the back rest 4, base plate 16 and side bar 20 is described with reference to Fig. 2～5, Fig. 2 is along the cutaway view of A-A line among Fig. 1, Fig. 3 be among Fig. 1 along the cutaway view of B-B line, Fig. 4 be among Fig. 1 along the cutaway view of C-C line, Fig. 5 is along the cutaway view of D-D line among Fig. 1.
As shown in Figure 2, part along the intercepting of A-A line, the lower surface of base plate 16 is connected with the upper surface of floor beams 2, the side bar inside and outside surperficial 22 that constitutes closing structure all is connected with the side end face of base plate 16 with 24, the cover of side bar or trim panel 28 are loaded on the lateral surface of side bar outside face 24, and car door 30(only one of shows) be installed on side bar 20 tops.
Intercepting part along the B-B line shown in Figure 3, base plate 16 lower surfaces link to each other with floor beams 2 upper surfaces, and side bar inside and outside surperficial 22 all is connected with the side end face of base plate 16 with 24.Floor beams 2, base plate 16 and side bar inside face 22 form closing structure 32, and side bar inside and outside surperficial 22 and 24 constitutes the closing structure 26 that is positioned at closing structure 32 outsides.
As shown in Figure 4, because the part that intercepts along the C-C line is described tube cavity segment 18, floor beams 2 has middle part 2a, and its height is greater than the other parts of beam 2.The lower surface of base plate 16 is connected with the upper surface of floor beams 2 middle part 2a, and side bar inside and outside surperficial 22 all is connected with the side end face of base plate 16 with 24.Floor beams 2, base plate 16 and side bar inside face 22 form closing structure 32, and this structure extends upward, thereby makes it have the sectional area big than the other parts of floor beams 2.That is, because the existence of tube cavity segment 18, closing structure 32 has additional sectional area 32a.In addition, side bar inside and outside surperficial 22 and 24 forms closing structure 26, so that further form upwardly extending additional sectional area 26a.Closing structure 32 has the reinforcement 34 that is used to increase rigidity that broad ways is extended.
As shown in Figure 5, in the intercepting part along the D-D line, the lower surface of base plate 16 is connected with the upper surface of floor beams 2, and in the side bar, outside face 22 all is connected with the side end face of base plate 16 with 24.Floor beams 2, base plate 16 and side bar inside face 22 also form closing structure 32, and side bar inside and outside surperficial 22 and 24 forms the closing structure 26 that is positioned at closing structure 32 outsides.
According to the above embodiment of the present invention, described undercarriage structure of motor vehicle has U-shaped tube cavity segment 18, and this part 18 is positioned at the middle part of base plate/16 along front/rear direction, and broad ways is extended; The middle part 2a that also has floor beams 2, the tube cavity segment 18 of base plate 16 links to each other with the middle part 2a of this beam 2, and this middle part 2a has higher height.Thereby the effect of the tube cavity segment 18 of base plate 16 is identical with a crossbeam, increases the rigidity of vehicle body on its Width, promptly increases the rigidity of vehicle opposing lateral loading.
In addition, owing to have side bar 20, it extends along front/rear direction in the outside of floor beams 2, and floor beams 2, base plate 16 and side bar inside face 22 form closing structure 32, the effect of side bar 20 and closing structure 32 also is similar to the tube cavity segment 18 of base plate 16, thereby further increase the rigidity of vehicle body, promptly increase the rigidity of vehicle opposing lateral loading along its Width.
In addition, because floor beams 2, base plate 16 and side bar inside face 22 form closing structure 32, and this structure 32 has the additional closing structure 32a of the tube cavity segment 18 that extends up to base plate 16, like this, the closing structure 32 that has additional closing structure 32a further increases the rigidity of vehicle body along its Width, promptly increases the rigidity of vehicle opposing lateral loading.
Moreover, because the side bar inside and outside surperficial 22 of side bar 20 and 24 forms closing structure 26, and this structure 26 has the additional closing structure 26a of the tube cavity segment 18 that extends up to base plate 16, the closing structure 26 that has additional closing structure 26a can further increase the rigidity of vehicle body along its Width, promptly increases the rigidity of vehicle opposing lateral loading.
In the embodiment of the invention owing to have a cavity segment 18 on the base plate 16, this part 18 can by on the base plate 16 or under various types of equipment of being provided with and being effectively utilized, now be described below.
Fig. 6 is the base plate of the preceding embodiment of the invention that has illustrated and the planar view of tube cavity segment, and Fig. 7 is the front elevation of Fig. 6.
Among Fig. 6 and Fig. 7, a pre-noise silencer 35 and a main muffler 36 broad wayss are arranged in the tube cavity segment 18 of base plate 16, and pre-noise silencer 35 and main muffler 36 are supported by support 40 and rubber fabricated section 38 by floor beams 42.Floor beams 42 is different from floor beams shown in Figure 12, and floor beams 42 only is connected with side bar 20 at tube cavity segment 18 places.Traditional pre-noise silencer 35 and main muffler 36 are arranged in the part of exhaust passage along front/rear direction, rather than in tube cavity segment 18.Yet, according to embodiments of the invention, owing to the space in the tube cavity segment 18 of base plate 16 can be effectively utilized, so traditional being used for is provided with the size that the space of pre-noise silencer 35 and main muffler 36 can be used to enlarge passenger accommodation.
Fig. 8 represents the transparent view of the tube cavity segment of base plate, as shown in Figure 8, organizes slide rail 44(more and only illustrates one group) be installed on the tube cavity segment 18 of base plate, and seat (not shown) direct mount is on slide rail 44.According to embodiments of the invention, because seat can utilize the tube cavity segment 18 relative base plates of base plate 16 to remain on desired height, so traditional seat support that seat must be fixed on the base plate can save.
According to embodiments of the invention, Fig. 9 is the planar view of the tube cavity segment of a base plate, and it illustrates the frame support bracket that is used for supporting four wheel drive (4WD) axle plunging joint and is arranged at described tube cavity segment below.Figure 10 is the lateral plan of Fig. 9, and Figure 11 is the front elevation of Fig. 9.
Shown in Fig. 9～11, frame support bracket 45 is being installed on the base plate 16 below the tube cavity segment 18.This carriage 45 is used for connecting cylinder cavity segment 18 on front/rear direction, and the plunging joint 48 of supporting four wheel drive (4WD) axle 46.Therefore, the plunging joint 48 of four wheel drive (4WD) axle 46 can be supported by the frame support bracket 45 that is installed in the cavity segment 18, and this base plate 16 is strengthened along the bending stiffness of front/rear direction.
According to the embodiment of the invention, Figure 12 represents the front elevation of base plate tube cavity segment, and seat is arranged on this part 18, and Figure 13 is the lateral plan of Figure 12.
Shown in Figure 12,13, not shown with other seat 50 of seat 50(along the seat frame 52 that front/rear direction is extended) underframe be installed together.On the other hand, the central post 54 of vehicle body both sides extends upward from side bar 20.Framework 56 is arranged between two central posts and broad ways is extended.The anterior 52a of seat frame 52 is installed on the extending upward on the part of tube cavity segment 18 of base plate 16, and being installed on the framework 56 that is connected between the central post 54 of the rear portion 52b of seat frame 52.Because the anterior 52a of seat frame 52 and rear portion 52b are installed on extending upward on the partial sum framework 56 of tube cavity segment 18 with big rigidity respectively, so seat 50 can be installed rigidly.
In the foregoing description shown in Fig. 1～5, floor beams 2 links to each other with side bar 20, and tube cavity segment 18 constitutes below base plate 16.Yet another embodiment of the present invention also is feasible, and its cavity segment 18 constitutes below base plate 16, but floor beams 2 is not connected with side bar 20, and is as described below.
According to another embodiment of the present invention, Figure 14 illustrates the transparent view of this embodiment automobile chassis frame, and Figure 15 is the cutaway view of E-E line among Figure 14, and Figure 16 is along the cutaway view of F-F line among Figure 14.
As shown in figure 14, the tube cavity segment 62 with U-shaped section is arranged at the middle part of base plate 60 along front/rear direction, and extends along the Width of vehicle body.Side bar 64(only one of illustrates) be installed on the outside of base plate 60 and extend along front/rear direction.This side bar 64 has the inside and outside expression 66 of side bar and 68 that constitutes closing structure 70.Intercepting part along the E-E line, as shown in figure 15, the side bar of side bar 60 inside and outside surperficial 66 and 68 forms closing structures 70.As shown in figure 16, forming closing structure 70 along the F-F line intercepting inside and outside expression 66 of part side bar and 68, this structure 70 has the tube cavity segment 62 upwardly extending additional closing structure 70a from base plate 60.
According to this embodiment of the invention, the tube cavity segment 62 with U-shaped cross section is arranged at the middle part of base plate 60 front/rear directions, and extends along vehicle-body width direction, and is installed on the outside of base plate 60 along the side bar 64 that front/rear direction is extended.Thereby tube cavity segment 62 can make the rigidity of vehicle body opposing lateral loading increase.In addition, because the inside and outside expression 66 of side bar of side bar 64 and 68 forms closing structure 70, and closing structure 70 has the tube cavity segment 62 upwardly extending additional closing structure 70a from base plate 60, therefore, further increases the rigidity of vehicle body opposing lateral loading.
In an embodiment of the present invention, a pre-noise silencer, a main muffler, seat slide, the supporting plunging joint, seat annex and the allied equipment that are used to support four wheel drive (4WD) axle also can be arranged under the cavity segment 62.
In the foregoing description shown in Figure 14～16, the closing structure 70 of side bar has the tube cavity segment 62 upwardly extending additional closing structure 70a from base plate 60.Different therewith, another embodiment of the present invention also is feasible, and wherein, the closing structure of side bar is constant along front/rear direction, and is as described below.
Figure 17 is the transparent view of automobile chassis frame according to another embodiment of the present invention, and as shown in figure 17, the tube cavity segment 82 with U-shaped cross section is arranged at the middle part of base plate 80 front/rear directions, and extends along vehicle-body width direction.The side bar 84(that extends along front/rear direction only illustrates one) be installed on the outside of base plate 80.Side bar 84 has the side bar inside and outside surperficial 86 and 88 that constitutes closing structure 90.The closing structure 90 of side bar 84 is constant along front/rear direction, and the tube cavity segment 82 of base plate 80 does not change yet.
According to this embodiment of the invention, the tube cavity segment 82 with U-shaped cross section is arranged at the middle part of base plate 80 along front/rear direction, and extends along the Width of vehicle body, and is installed on the outside of base plate 80 along the side bar 84 that front/rear direction is extended.Therefore, tube cavity segment 82 increases the rigidity of vehicle body opposing lateral loading.
Though the present invention is described by above-mentioned each most preferred embodiment, those of ordinary skill in the art will recognize, can make various modification and improvement in spirit of the present invention and scope.Scope of the present invention is limited by appended claim fully.

Claims (12)

1, a kind of undercarriage structure of motor vehicle comprises:
A pair of front-axle beam;
A pair of and described front-axle beam rear end is the bonded assembly floor beams integrally;
One is installed in the base plate on the floor beams; With
Some side bars that extend and be connected along front/rear direction with described floor beams side;
Described floor beams, each side bar and base plate constitute the closing structure that extends along front/rear direction together.
2, undercarriage structure of motor vehicle according to claim 1, wherein, described base plate constitutes a tube cavity segment with U-shaped cross section along the middle part of its front/rear direction, this part is extended along the Width of vehicle body, and described closing structure extends upward from described tube cavity segment.
3, undercarriage structure of motor vehicle according to claim 2, wherein, this structure also comprises a pre-noise silencer and a main muffler that is arranged in the described tube cavity segment.
4, undercarriage structure of motor vehicle according to claim 2, wherein, this structure also comprises the seat slide of the passenger seat on the tube cavity segment that is installed on described base plate.
5, undercarriage structure of motor vehicle according to claim 2, wherein, this structure also is included in the attaching parts that connects described tube cavity segment on the front/rear direction, the plunging joint of this connector supporting one four wheel drive axle.
6, undercarriage structure of motor vehicle according to claim 2, wherein, the frame parts that this structure also has the seat frame of some passenger seats and extends between central post, the front portion of seat frame is connected with the upwardly extending part of base plate tube cavity segment, and the rear portion of seat frame is connected with described frame parts.
7, a kind of undercarriage structure of motor vehicle comprises:
A pair of front-axle beam;
A pair of and the rear end of described front-axle beam integrally are connected the ground floor beams;
One is installed on the base plate on the floor beams; With
Some side bars that extend and be connected along front/rear direction with the side of floor beams;
Described base plate constitutes a tube cavity segment with U-shaped cross section along the middle part of its front/rear direction, this part is extended along vehicle-body width direction.
8, undercarriage structure of motor vehicle according to claim 7, wherein, described all side bars constitute the closing structure that extends along front/rear direction, and this structure extends upward from described tube cavity segment.
9, undercarriage structure of motor vehicle according to claim 7, wherein, this structure also comprises a pre-noise silencer and a main muffler that is arranged at described tube cavity segment.
10, undercarriage structure of motor vehicle according to claim 7, wherein, this structure also comprises the seat slide that is installed on the passenger seat on the base plate tube cavity segment.
11, undercarriage structure of motor vehicle according to claim 7, wherein, this structure comprises that also front/rear direction connects a connection piece of described tube cavity segment, the plunging joint of this connector supporting one four wheel drive axle.
12, undercarriage structure of motor vehicle according to claim 7, wherein, the frame parts that this structure also has the seat frame of some passenger seats and extends between central post, the front portion of seat frame is connected with the upwardly extending part of base plate tube cavity segment, and the rear portion of seat frame is connected with described frame parts.
CN94104137A 1993-03-30 1994-03-30 Undercarriage structure of motor vehicle Expired - Lifetime CN1072575C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP072396/93 1993-03-30
JP07239693A JP3467756B2 (en) 1993-03-30 1993-03-30 Undercar structure
JP072396/1993 1993-03-30

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Publication Number Publication Date
CN1096258A true CN1096258A (en) 1994-12-14
CN1072575C CN1072575C (en) 2001-10-10

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US (1) US5476303A (en)
EP (1) EP0619215B1 (en)
JP (1) JP3467756B2 (en)
KR (1) KR100319905B1 (en)
CN (1) CN1072575C (en)
DE (1) DE69425392T2 (en)

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DE69425392T2 (en) 2001-03-29
KR100319905B1 (en) 2002-04-06
JP3467756B2 (en) 2003-11-17
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US5476303A (en) 1995-12-19
JPH06286664A (en) 1994-10-11

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